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🟠 Left ventricular dimension and systolic function

Visual assessment of regional wall motion (left ventricle) TYPE OF MOTION DEFINITION WALL MOTION SCORE Normal Normal thickening (typically 30% thickening from end diastole to…

Right bundle branch block (RBBB): ECG, criteria, definitions, causes & treatment

…the S wave does not reach the baseline. The second R wave (denoted R') is virtually always larger than the first R wave. Leads V5…

Ventricular rhythm and accelerated ventricular rhythm (idioventricular rhythm)

…rhythms. Increased automaticity (in His Purkinje fibers), abnormal automaticity (in contractile myocardium), re entry (anywhere) or triggered activity (anywhere) may all cause ventricular arrhythmias. Indeed…

Ventricular tachycardia (VT): ECG criteria, causes, classification, treatment

…attention. The ventricular rate is typically very high (100–250 beats per minute) and cardiac output is affected (i.e reduced) in virtually all cases…

Delirium in older adults: quick reference

…not exclude delirium, however, and an abnormal result is not specific to delirium. Symptoms are often worse in the evening and at night, but diurnal…

Hypoglycaemia: quick reference for emergency management

…glucose to the brain can cause: difficulty concentrating irritability or abnormal behaviour slurred speech visual disturbance confusion focal neurological signs drowsiness or unconsciousness seizures coma…

Digoxin - ECG changes, arrhythmias, conduction defects & treatment

…ventricles. This increases the automaticity in cells with natural automaticity but it may also provoke abnormal automaticity in cells that normally do not exhibit automaticity…

Interpretation of Pacemaker ECG

…rate is usually set to 60 beats/min. The base rate is virtually always 50 beats/min, meaning that any heart rate below 50 beats…

Sinoatrial arrest & sinoatrial pause (sinus pause / arrest)

…uncommon that sinus arrest leads to persistent asystole; latent pacemakers virtually always awake and salvage the rhythm. Adam Stokes attack Syncope due to sinus arrest…

ST segment depression in myocardial ischemia and differential diagnoses

…ST segment depressions. These are all common conditions in which an abnormal depolarization (QRS complex) causes abnormalities in the repolarization (ST T segment). For example…

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